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From: Jonathan Drolet <lagoule@gmail.com>
Newsgroups: comp.graphics.apps.gnuplot
Subject: Zero-order hold interpolation
Date: Tue, 26 Apr 2011 09:20:15 -0700 (PDT)
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Xref: x330-a1.tempe.blueboxinc.net comp.graphics.apps.gnuplot:279

Hello,

I'm looking to plot values from a datafile with lines; this part is
quite easy with gnuplot. My problem, however, is that gnuplot will
linearly interpolate between datapoints. This is usually what I need,
but for this particular plot, I want the line to be constant between
two datapoints (zero-order hold interpolation), but can't seem to
figure out an easy way to do this.

Is there a way to do this with gnuplot?

Thanks,

Jonathan